Results 241 to 250 of about 86,247 (358)
Reflectance spectroscopy and remote sensing for prediction of soil organic carbon and total nitrogen across different agricultural contexts [PDF]
Sharon Gomes Ribeiro
openalex
Intrinsic PPG–ECG Coupling for Accurate and Low‐Power Blood Pressure Monitoring
A PPG–ECG coupling strategy for continuous blood pressure monitoring that intrinsically synchronizes signals within a single waveform is demonstrated, minimizing synchronization errors and hardware complexity. This approach halves power consumption while maintaining high accuracy, enabling compact, energy‐efficient wearable devices for personalized ...
Sitong Chen +5 more
wiley +1 more source
A PCA-based standardized spectral index from Sentinel-2 for modeling soil macronutrients in the Miandoab region, Iran. [PDF]
Dianati A +4 more
europepmc +1 more source
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas +6 more
wiley +1 more source
Detected Shifts Towards Drought-Adaptive Strategies in the Amazon Forest Over the Last Four Decades. [PDF]
Barbosa M +7 more
europepmc +1 more source
Nickel‐Catalyzed Twofold Conjunctive Coupling via Philicity‐Alternating Radical Relay
Herein, we disclose a nickel‐catalyzed twofold conjunctive coupling that enables a four‐component assembly involving an activated alkene, a 1,3‐enyne, and both alkyl and aryl halides. Multiple C–C bonds are selectively constructed through a philicity‐alternating radical relay and the selective radical capture by the nickel catalyst.
Ji Hwan Jeon +7 more
wiley +1 more source
Integrating transformer-based learning and Sentinel-2 bare soil composites for soil organic carbon mapping in the black soil region of Northeast China. [PDF]
Chen N +6 more
europepmc +1 more source

